Yes, according to many customers who are avid travelers, Dollar Flight Club and their premium plans are most definitely worth it. Although there are those customers who feel that flight alerts are not of sufficient value to justify Dollar Flight Club's current subscription prices, most customers seem to be happy with the flight alerts that Dollar Flight Club provide, and many say that they have saved hundreds of dollars over the course of a year due because of Dollar Flight Club.
No, Dollar Flight Club does not have an app.
Dollar Flight Club offers a Premium Membership and a Premium Plus+ Membership. The Premium Membership is $69, billed annually. The Premium Plus+ Membership is $169, billed annually. Dollar Flight Club also offers a Free Membership, but Free Members are only allowed to choose deals from one departure airport, and will only receive a fraction of the alerts and deals that paid members will receive.
Yes, the company and the travel deals shared on Dollar Flight Club are legitimate. Dollar Flight Club essentially acts as an aggregator and curator of flights from across different sources. When customers sign up for their paid subscription service, Dollar Flight Club will send flight alerts straight to their email inbox. These alerts are triggered whenever there happens to be a flash sale, error fare, or competition between airlines (which sparks a drop in price).